feat(secrets-mcp): MCP 请求日志、探测 404 与资源元数据

- 新增 logging 中间件：记录 client_ip、ua、JSON-RPC、tool 等
- tools 各入口/出口结构化日志
- 探测型 404（/.well-known、GET /mcp）降为 debug
- /.well-known/oauth-protected-resource 最小元数据
- secrets-mcp 0.1.11

Made-with: Cursor

AGENTS.md

@@ -2,12 +2,13 @@
 
 本仓库为 **MCP SaaS**：`secrets-core`（业务与持久化）+ `secrets-mcp`（Streamable HTTP MCP、Web、OAuth、API Key）。对外入口见 `crates/secrets-mcp`。
 
-## 提交 / 发版硬规则（优先于下文）
+## 提交 / 推送硬规则（优先于下文）
+
+**每次提交和推送前必须执行以下检查，无论是否明确「发版」：**
 
 1. 涉及 `crates/**`、根目录 `Cargo.toml`/`Cargo.lock`、`secrets-mcp` 行为变更的提交，默认视为**需要发版**，除非明确说明「本次不发版」。
-2. 发版前检查 `crates/secrets-mcp/Cargo.toml` 的 `version`，再查 tag：`git tag -l 'secrets-mcp-*'`。
+2. 提交前检查 `crates/secrets-mcp/Cargo.toml` 的 `version`，再查 tag：`git tag -l 'secrets-mcp-*'`。若当前版本对应 tag 已存在且有代码变更，**必须 bump 版本号**并 `cargo build` 同步 `Cargo.lock`。
-3. 若当前版本对应 tag 已存在，默认允许复用现有 tag 继续构建；仅在需要新的发布版本时再 bump `version` 并 `cargo build` 同步 `Cargo.lock`。
+3. 提交前运行 `./scripts/release-check.sh`（版本/tag + `fmt` + `clippy --locked` + `test --locked`）。若脚本不存在或不可用，至少运行 `cargo fmt -- --check && cargo clippy --locked -- -D warnings && cargo test --locked`。
-4. 提交前优先运行 `./scripts/release-check.sh`（版本/tag + `fmt` + `clippy --locked` + `test --locked`）。
 
 ## 项目结构
 
@@ -28,7 +29,7 @@ secrets/
 
 - **建议库名**：`secrets-mcp`（专用实例，与历史库名区分）。
 - **连接**：环境变量 **`SECRETS_DATABASE_URL`**（本分支无本地配置文件路径）。
-- **表**：`entries`（含 `user_id`）、`secrets`、`entries_history`、`secrets_history`、`audit_log`、`users`、`oauth_accounts`、`api_keys`，首次连接 **auto-migrate**。
+- **表**：`entries`（含 `user_id`）、`secrets`、`entries_history`、`secrets_history`、`audit_log`、`users`、`oauth_accounts`，首次连接 **auto-migrate**。
 
 ### 表结构（摘录）
 
@@ -60,7 +61,7 @@ secrets (
 )
 ```
 
-### users / oauth_accounts / api_keys
+### users / oauth_accounts
 
 ```sql
 users (
@@ -71,6 +72,7 @@ users (
   key_salt     BYTEA,         -- PBKDF2 salt（32B），首次设置密码短语时写入
   key_check    BYTEA,         -- 派生密钥加密已知常量，用于验证密码短语
   key_params   JSONB,         -- 算法参数，如 {"alg":"pbkdf2-sha256","iterations":600000}
+  api_key      TEXT UNIQUE,   -- MCP Bearer token（当前实现为明文存储）
   created_at   TIMESTAMPTZ NOT NULL DEFAULT NOW(),
   updated_at   TIMESTAMPTZ NOT NULL DEFAULT NOW()
 )
@@ -83,21 +85,11 @@ oauth_accounts (
   ...
   UNIQUE(provider, provider_id)
 )
-
-api_keys (
-  id            UUID PRIMARY KEY DEFAULT uuidv7(),
-  user_id       UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
-  name          VARCHAR(256) NOT NULL,
-  key_hash      VARCHAR(64) NOT NULL UNIQUE,
-  key_prefix    VARCHAR(12) NOT NULL,
-  last_used_at  TIMESTAMPTZ,
-  created_at    TIMESTAMPTZ NOT NULL DEFAULT NOW()
-)
 ```
 
 ### audit_log / history
 
-与迁移脚本一致：`audit_log`、`entries_history`、`secrets_history` 用于审计与时间旅行恢复；字段定义见 `crates/secrets-core/src/db.rs` 内 `migrate` SQL。
+与迁移脚本一致：`audit_log`、`entries_history`、`secrets_history` 用于审计与时间旅行恢复；字段定义见 `crates/secrets-core/src/db.rs` 内 `migrate` SQL。`audit_log` 中普通业务事件的 `namespace/kind/name` 对应 entry 坐标；登录类事件固定使用 `namespace='auth'`，此时 `kind/name` 表示认证目标而非 entry 身份。
 
 ### 字段职责
 
@@ -165,6 +157,5 @@ git tag -l 'secrets-mcp-*'
 | `SECRETS_MCP_BIND` | 监听地址，默认 `0.0.0.0:9315`。 |
 | `GOOGLE_CLIENT_ID` / `GOOGLE_CLIENT_SECRET` | 可选；仅运行时配置。 |
 | `RUST_LOG` | 如 `secrets_mcp=debug`。 |
-| `USER` | 若写入审计 `actor`，由运行环境提供。 |
 
 > `SERVER_MASTER_KEY` 已不再需要。新架构下密钥由用户密码短语在客户端派生，服务端不持有。

Cargo.lock

@@ -1949,7 +1949,7 @@ dependencies = [
 
 [[package]]
 name = "secrets-mcp"
-version = "0.1.7"
+version = "0.1.11"
 dependencies = [
  "anyhow",
  "askama",
@@ -2700,6 +2700,7 @@ dependencies = [
  "tower",
  "tower-layer",
  "tower-service",
+ "tracing",
 ]
 
 [[package]]

README.md

@@ -77,7 +77,7 @@ flowchart LR
 ### 敏感数据传输
 
 - **OAuth `client_secret`** 只存服务端环境变量，不发给浏览器
-- **API Key** 创建时原始 key 仅展示一次，库中只存 SHA-256 哈希
+- **API Key** 当前存放在 `users.api_key`，Dashboard 会明文展示并可重置
 - **X-Encryption-Key** 随 MCP 请求经 TLS 传输，服务端仅在请求处理期间持有（不持久化）
 - **生产环境必须走 HTTPS/TLS**
 
@@ -121,7 +121,7 @@ flowchart LR
 
 ## 数据模型
 
-主表 **`entries`**（`namespace`、`kind`、`name`、`tags`、`metadata`，多租户时带 `user_id`）+ 子表 **`secrets`**（每行一个加密字段：`field_name`、`encrypted`）。另有 `entries_history`、`secrets_history`、`audit_log`，以及 **`users`**（含 `key_salt`、`key_check`、`key_params`）、**`oauth_accounts`**、**`api_keys`**。首次连库自动迁移建表。
+主表 **`entries`**（`namespace`、`kind`、`name`、`tags`、`metadata`，多租户时带 `user_id`）+ 子表 **`secrets`**（每行一个加密字段：`field_name`、`encrypted`）。另有 `entries_history`、`secrets_history`、`audit_log`，以及 **`users`**（含 `key_salt`、`key_check`、`key_params`、`api_key`）、**`oauth_accounts`**。首次连库自动迁移建表。
 
 | 位置 | 字段 | 说明 |
 |------|------|------|
@@ -142,9 +142,10 @@ flowchart LR
 ## 审计日志
 
 `add`、`update`、`delete` 等写操作写入 **`audit_log`**（操作类型、对象、摘要，不含 secret 明文）。
+其中业务条目事件使用 `[namespace/kind] name` 语义；登录类事件使用 `namespace='auth'`，此时 `kind/name` 表示认证目标（例如 `oauth/google`），不表示某条 secrets entry。
 
 ```sql
-SELECT action, namespace, kind, name, actor, detail, created_at
+SELECT action, namespace, kind, name, detail, created_at
 FROM audit_log
 ORDER BY created_at DESC
 LIMIT 20;

crates/secrets-core/src/audit.rs

@@ -5,19 +5,8 @@ use uuid::Uuid;
 pub const ACTION_LOGIN: &str = "login";
 pub const NAMESPACE_AUTH: &str = "auth";
 
-/// Return the current OS user as the audit actor (falls back to empty string).
+fn login_detail(provider: &str, client_ip: Option<&str>, user_agent: Option<&str>) -> Value {
-pub fn current_actor() -> String {
-    std::env::var("USER").unwrap_or_default()
-}
-
-fn login_detail(
-    user_id: Uuid,
-    provider: &str,
-    client_ip: Option<&str>,
-    user_agent: Option<&str>,
-) -> Value {
     json!({
-        "user_id": user_id,
         "provider": provider,
         "client_ip": client_ip,
         "user_agent": user_agent,
@@ -33,11 +22,10 @@ pub async fn log_login(
     client_ip: Option<&str>,
     user_agent: Option<&str>,
 ) {
-    let actor = current_actor();
+    let detail = login_detail(provider, client_ip, user_agent);
-    let detail = login_detail(user_id, provider, client_ip, user_agent);
     let result: Result<_, sqlx::Error> = sqlx::query(
-        "INSERT INTO audit_log (user_id, action, namespace, kind, name, detail, actor) \
+        "INSERT INTO audit_log (user_id, action, namespace, kind, name, detail) \
-         VALUES ($1, $2, $3, $4, $5, $6, $7)",
+         VALUES ($1, $2, $3, $4, $5, $6)",
     )
     .bind(user_id)
     .bind(ACTION_LOGIN)
@@ -45,14 +33,13 @@ pub async fn log_login(
     .bind(kind)
     .bind(provider)
     .bind(&detail)
-    .bind(&actor)
     .execute(pool)
     .await;
 
     if let Err(e) = result {
         tracing::warn!(error = %e, kind, provider, "failed to write login audit log");
     } else {
-        tracing::debug!(kind, provider, ?user_id, actor, "login audit logged");
+        tracing::debug!(kind, provider, ?user_id, "login audit logged");
     }
 }
 
@@ -66,10 +53,9 @@ pub async fn log_tx(
     name: &str,
     detail: Value,
 ) {
-    let actor = current_actor();
     let result: Result<_, sqlx::Error> = sqlx::query(
-        "INSERT INTO audit_log (user_id, action, namespace, kind, name, detail, actor) \
+        "INSERT INTO audit_log (user_id, action, namespace, kind, name, detail) \
-         VALUES ($1, $2, $3, $4, $5, $6, $7)",
+         VALUES ($1, $2, $3, $4, $5, $6)",
     )
     .bind(user_id)
     .bind(action)
@@ -77,14 +63,13 @@ pub async fn log_tx(
     .bind(kind)
     .bind(name)
     .bind(&detail)
-    .bind(&actor)
     .execute(&mut **tx)
     .await;
 
     if let Err(e) = result {
         tracing::warn!(error = %e, "failed to write audit log");
     } else {
-        tracing::debug!(action, namespace, kind, name, actor, "audit logged");
+        tracing::debug!(action, namespace, kind, name, "audit logged");
     }
 }
 
@@ -94,10 +79,8 @@ mod tests {
 
     #[test]
     fn login_detail_includes_expected_fields() {
-        let user_id = Uuid::nil();
+        let detail = login_detail("google", Some("127.0.0.1"), Some("Mozilla/5.0"));
-        let detail = login_detail(user_id, "google", Some("127.0.0.1"), Some("Mozilla/5.0"));
 
-        assert_eq!(detail["user_id"], json!(user_id));
         assert_eq!(detail["provider"], "google");
         assert_eq!(detail["client_ip"], "127.0.0.1");
         assert_eq!(detail["user_agent"], "Mozilla/5.0");

crates/secrets-core/src/db.rs

@@ -3,8 +3,6 @@ use serde_json::Value;
 use sqlx::PgPool;
 use sqlx::postgres::PgPoolOptions;
 
-use crate::audit::current_actor;
-
 pub async fn create_pool(database_url: &str) -> Result<PgPool> {
     tracing::debug!("connecting to database");
     let pool = PgPoolOptions::new()
@@ -73,11 +71,9 @@ pub async fn migrate(pool: &PgPool) -> Result<()> {
             kind        VARCHAR(64)  NOT NULL,
             name        VARCHAR(256) NOT NULL,
             detail      JSONB        NOT NULL DEFAULT '{}',
-            actor       VARCHAR(128) NOT NULL DEFAULT '',
             created_at  TIMESTAMPTZ  NOT NULL DEFAULT NOW()
         );
 
-        ALTER TABLE audit_log ADD COLUMN IF NOT EXISTS user_id UUID;
         CREATE INDEX IF NOT EXISTS idx_audit_log_created  ON audit_log(created_at DESC);
         CREATE INDEX IF NOT EXISTS idx_audit_log_ns_kind  ON audit_log(namespace, kind);
         CREATE INDEX IF NOT EXISTS idx_audit_log_user_id  ON audit_log(user_id) WHERE user_id IS NOT NULL;
@@ -93,7 +89,6 @@ pub async fn migrate(pool: &PgPool) -> Result<()> {
             action      VARCHAR(16)  NOT NULL,
             tags        TEXT[]       NOT NULL DEFAULT '{}',
             metadata    JSONB        NOT NULL DEFAULT '{}',
-            actor       VARCHAR(128) NOT NULL DEFAULT '',
             created_at  TIMESTAMPTZ  NOT NULL DEFAULT NOW()
         );
 
@@ -106,6 +101,7 @@ pub async fn migrate(pool: &PgPool) -> Result<()> {
         ALTER TABLE entries_history ADD COLUMN IF NOT EXISTS user_id UUID;
         CREATE INDEX IF NOT EXISTS idx_entries_history_user_id
             ON entries_history(user_id) WHERE user_id IS NOT NULL;
+        ALTER TABLE entries_history DROP COLUMN IF EXISTS actor;
 
         -- ── secrets_history: field-level snapshot ────────────────────────────────
         CREATE TABLE IF NOT EXISTS secrets_history (
@@ -116,7 +112,6 @@ pub async fn migrate(pool: &PgPool) -> Result<()> {
             field_name      VARCHAR(256) NOT NULL,
             encrypted       BYTEA        NOT NULL DEFAULT '\x',
             action          VARCHAR(16)  NOT NULL,
-            actor           VARCHAR(128) NOT NULL DEFAULT '',
             created_at      TIMESTAMPTZ  NOT NULL DEFAULT NOW()
         );
 
@@ -125,6 +120,12 @@ pub async fn migrate(pool: &PgPool) -> Result<()> {
         CREATE INDEX IF NOT EXISTS idx_secrets_history_secret_id
             ON secrets_history(secret_id);
 
+        -- Drop redundant actor column (derivable via entries_history JOIN)
+        ALTER TABLE secrets_history DROP COLUMN IF EXISTS actor;
+
+        -- Drop redundant actor column; user_id already identifies the business user
+        ALTER TABLE audit_log DROP COLUMN IF EXISTS actor;
+
         -- ── users ─────────────────────────────────────────────────────────────────
         CREATE TABLE IF NOT EXISTS users (
             id          UUID PRIMARY KEY DEFAULT uuidv7(),
@@ -159,10 +160,75 @@ pub async fn migrate(pool: &PgPool) -> Result<()> {
     )
     .execute(pool)
     .await?;
+    restore_plaintext_api_keys(pool).await?;
+
     tracing::debug!("migrations complete");
     Ok(())
 }
 
+async fn restore_plaintext_api_keys(pool: &PgPool) -> Result<()> {
+    let has_users_api_key: bool = sqlx::query_scalar(
+        "SELECT EXISTS (
+            SELECT 1
+            FROM information_schema.columns
+            WHERE table_schema = 'public'
+              AND table_name = 'users'
+              AND column_name = 'api_key'
+        )",
+    )
+    .fetch_one(pool)
+    .await?;
+
+    if !has_users_api_key {
+        sqlx::query("ALTER TABLE users ADD COLUMN api_key TEXT")
+            .execute(pool)
+            .await?;
+        sqlx::query("CREATE UNIQUE INDEX IF NOT EXISTS idx_users_api_key ON users(api_key) WHERE api_key IS NOT NULL")
+            .execute(pool)
+            .await?;
+    }
+
+    let has_api_keys_table: bool = sqlx::query_scalar(
+        "SELECT EXISTS (
+            SELECT 1
+            FROM information_schema.tables
+            WHERE table_schema = 'public'
+              AND table_name = 'api_keys'
+        )",
+    )
+    .fetch_one(pool)
+    .await?;
+
+    if !has_api_keys_table {
+        return Ok(());
+    }
+
+    #[derive(sqlx::FromRow)]
+    struct UserWithoutKey {
+        id: uuid::Uuid,
+    }
+
+    let users_without_key: Vec<UserWithoutKey> =
+        sqlx::query_as("SELECT DISTINCT user_id AS id FROM api_keys WHERE user_id NOT IN (SELECT id FROM users WHERE api_key IS NOT NULL)")
+            .fetch_all(pool)
+            .await?;
+
+    for user in users_without_key {
+        let new_key = crate::service::api_key::generate_api_key();
+        sqlx::query("UPDATE users SET api_key = $1 WHERE id = $2")
+            .bind(&new_key)
+            .bind(user.id)
+            .execute(pool)
+            .await?;
+    }
+
+    sqlx::query("DROP TABLE IF EXISTS api_keys")
+        .execute(pool)
+        .await?;
+
+    Ok(())
+}
+
 // ── Entry-level history snapshot ─────────────────────────────────────────────
 
 pub struct EntrySnapshotParams<'a> {
@@ -181,11 +247,10 @@ pub async fn snapshot_entry_history(
     tx: &mut sqlx::Transaction<'_, sqlx::Postgres>,
     p: EntrySnapshotParams<'_>,
 ) -> Result<()> {
-    let actor = current_actor();
     sqlx::query(
         "INSERT INTO entries_history \
-         (entry_id, namespace, kind, name, version, action, tags, metadata, actor, user_id) \
+         (entry_id, namespace, kind, name, version, action, tags, metadata, user_id) \
-         VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)",
+         VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)",
     )
     .bind(p.entry_id)
     .bind(p.namespace)
@@ -195,7 +260,6 @@ pub async fn snapshot_entry_history(
     .bind(p.action)
     .bind(p.tags)
     .bind(p.metadata)
-    .bind(&actor)
     .bind(p.user_id)
     .execute(&mut **tx)
     .await?;
@@ -217,11 +281,10 @@ pub async fn snapshot_secret_history(
     tx: &mut sqlx::Transaction<'_, sqlx::Postgres>,
     p: SecretSnapshotParams<'_>,
 ) -> Result<()> {
-    let actor = current_actor();
     sqlx::query(
         "INSERT INTO secrets_history \
-         (entry_id, secret_id, entry_version, field_name, encrypted, action, actor) \
+         (entry_id, secret_id, entry_version, field_name, encrypted, action) \
-         VALUES ($1, $2, $3, $4, $5, $6, $7)",
+         VALUES ($1, $2, $3, $4, $5, $6)",
     )
     .bind(p.entry_id)
     .bind(p.secret_id)
@@ -229,7 +292,6 @@ pub async fn snapshot_secret_history(
     .bind(p.field_name)
     .bind(p.encrypted)
     .bind(p.action)
-    .bind(&actor)
     .execute(&mut **tx)
     .await?;
     Ok(())

crates/secrets-core/src/models.rs

@@ -9,6 +9,7 @@ use uuid::Uuid;
 #[derive(Debug, Serialize, Deserialize, sqlx::FromRow)]
 pub struct Entry {
     pub id: Uuid,
+    pub user_id: Option<Uuid>,
     pub namespace: String,
     pub kind: String,
     pub name: String,
@@ -184,7 +185,6 @@ pub struct AuditLogEntry {
     pub kind: String,
     pub name: String,
     pub detail: Value,
-    pub actor: String,
     pub created_at: DateTime<Utc>,
 }
 

crates/secrets-core/src/service/audit_log.rs

@@ -8,9 +8,9 @@ pub async fn list_for_user(pool: &PgPool, user_id: Uuid, limit: i64) -> Result<V
     let limit = limit.clamp(1, 200);
 
     let rows = sqlx::query_as(
-        "SELECT id, user_id, action, namespace, kind, name, detail, actor, created_at \
+        "SELECT id, user_id, action, namespace, kind, name, detail, created_at \
          FROM audit_log \
-         WHERE user_id = $1 OR (user_id IS NULL AND detail->>'user_id' = $1::text) \
+         WHERE user_id = $1 \
          ORDER BY created_at DESC, id DESC \
          LIMIT $2",
     )

crates/secrets-core/src/service/history.rs

@@ -7,7 +7,6 @@ use uuid::Uuid;
 pub struct HistoryEntry {
     pub version: i64,
     pub action: String,
-    pub actor: String,
     pub created_at: String,
 }
 
@@ -23,13 +22,12 @@ pub async fn run(
     struct Row {
         version: i64,
         action: String,
-        actor: String,
         created_at: chrono::DateTime<chrono::Utc>,
     }
 
     let rows: Vec<Row> = if let Some(uid) = user_id {
         sqlx::query_as(
-            "SELECT version, action, actor, created_at FROM entries_history \
+            "SELECT version, action, created_at FROM entries_history \
              WHERE namespace = $1 AND kind = $2 AND name = $3 AND user_id = $4 \
              ORDER BY id DESC LIMIT $5",
         )
@@ -42,7 +40,7 @@ pub async fn run(
         .await?
     } else {
         sqlx::query_as(
-            "SELECT version, action, actor, created_at FROM entries_history \
+            "SELECT version, action, created_at FROM entries_history \
              WHERE namespace = $1 AND kind = $2 AND name = $3 AND user_id IS NULL \
              ORDER BY id DESC LIMIT $4",
         )
@@ -59,7 +57,6 @@ pub async fn run(
         .map(|r| HistoryEntry {
             version: r.version,
             action: r.action,
-            actor: r.actor,
             created_at: r.created_at.format("%Y-%m-%dT%H:%M:%SZ").to_string(),
         })
         .collect())

crates/secrets-core/src/service/search.rs

@@ -131,7 +131,7 @@ async fn fetch_entries_paged(pool: &PgPool, a: &SearchParams<'_>) -> Result<Vec<
     };
 
     let sql = format!(
-        "SELECT id, COALESCE(user_id, '00000000-0000-0000-0000-000000000000'::uuid) AS user_id, \
+        "SELECT id, user_id, \
          namespace, kind, name, tags, metadata, version, created_at, updated_at \
          FROM entries {where_clause} ORDER BY {order} LIMIT ${limit_idx} OFFSET ${offset_idx}"
     );
@@ -212,8 +212,7 @@ pub async fn fetch_secrets_for_entries(
 #[derive(sqlx::FromRow)]
 struct EntryRaw {
     id: Uuid,
-    #[allow(dead_code)] // Selected for row shape; Entry model has no user_id field
+    user_id: Option<Uuid>,
-    user_id: Uuid,
     namespace: String,
     kind: String,
     name: String,
@@ -228,6 +227,7 @@ impl From<EntryRaw> for Entry {
     fn from(r: EntryRaw) -> Self {
         Entry {
             id: r.id,
+            user_id: r.user_id,
             namespace: r.namespace,
             kind: r.kind,
             name: r.name,

crates/secrets-mcp/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "secrets-mcp"
-version = "0.1.7"
+version = "0.1.11"
 edition.workspace = true
 
 [[bin]]
@@ -17,7 +17,7 @@ rmcp = { version = "1", features = ["server", "macros", "transport-streamable-ht
 axum = "0.8"
 axum-extra = { version = "0.10", features = ["typed-header"] }
 tower = "0.5"
-tower-http = { version = "0.6", features = ["cors"] }
+tower-http = { version = "0.6", features = ["cors", "trace"] }
 tower-sessions = "0.14"
 
 # OAuth (manual token exchange via reqwest)

crates/secrets-mcp/src/logging.rs

@@ -0,0 +1,249 @@
+use std::net::SocketAddr;
+use std::time::Instant;
+
+use axum::{
+    body::{Body, Bytes, to_bytes},
+    extract::{ConnectInfo, Request},
+    http::{
+        HeaderMap, Method,
+        header::{CONTENT_LENGTH, CONTENT_TYPE, USER_AGENT},
+    },
+    middleware::Next,
+    response::Response,
+};
+
+/// Axum middleware that logs structured info for every HTTP request.
+///
+/// All requests: method, path, status, latency_ms, client_ip, user_agent.
+/// POST /mcp requests: additionally parses JSON-RPC body for jsonrpc_method,
+/// tool_name, jsonrpc_id, mcp_session, batch_size.
+///
+/// Sensitive headers (Authorization, X-Encryption-Key) and secret values
+/// are never logged.
+pub async fn request_logging_middleware(req: Request, next: Next) -> Response {
+    let method = req.method().clone();
+    let path = req.uri().path().to_string();
+    let ip = client_ip(&req);
+    let ua = header_str(req.headers(), USER_AGENT);
+    let content_len = header_str(req.headers(), CONTENT_LENGTH).and_then(|v| v.parse::<u64>().ok());
+    let mcp_session = req
+        .headers()
+        .get("mcp-session-id")
+        .or_else(|| req.headers().get("x-mcp-session"))
+        .and_then(|v| v.to_str().ok())
+        .map(|s| s.to_string());
+
+    let is_mcp_post = path.starts_with("/mcp") && method == Method::POST;
+    let is_json = header_str(req.headers(), CONTENT_TYPE)
+        .map(|ct| ct.contains("application/json"))
+        .unwrap_or(false);
+
+    let start = Instant::now();
+
+    // For MCP JSON-RPC POST requests, buffer body to extract JSON-RPC metadata.
+    // We cap at 512 KiB to avoid buffering large payloads.
+    if is_mcp_post && is_json {
+        let cap = content_len.unwrap_or(0);
+        if cap <= 512 * 1024 {
+            let (parts, body) = req.into_parts();
+            match to_bytes(body, 512 * 1024).await {
+                Ok(bytes) => {
+                    let rpc = parse_jsonrpc_meta(&bytes);
+                    let req = Request::from_parts(parts, Body::from(bytes));
+                    let resp = next.run(req).await;
+                    let status = resp.status().as_u16();
+                    let elapsed = start.elapsed().as_millis();
+                    log_mcp_request(
+                        &method,
+                        &path,
+                        status,
+                        elapsed,
+                        ip.as_deref(),
+                        ua.as_deref(),
+                        content_len,
+                        mcp_session.as_deref(),
+                        &rpc,
+                    );
+                    return resp;
+                }
+                Err(e) => {
+                    tracing::warn!(path, error = %e, "failed to buffer MCP request body for logging");
+                    // Reconstruct with empty body; request was consumed — return 500.
+                    // This branch is highly unlikely in practice.
+                    let resp = next.run(Request::from_parts(parts, Body::empty())).await;
+                    return resp;
+                }
+            }
+        }
+    }
+
+    let resp = next.run(req).await;
+    let status = resp.status().as_u16();
+    let elapsed = start.elapsed().as_millis();
+
+    // Known client probe patterns that legitimately 404 — downgrade to debug to
+    // avoid noise in production logs.  These are:
+    //   • GET /.well-known/* — OAuth/OIDC discovery by MCP clients (RFC 8414 / RFC 9728)
+    //   • GET /mcp → 404    — old SSE-transport compatibility probe by clients
+    let is_expected_probe_404 = status == 404
+        && (path.starts_with("/.well-known/")
+            || (method == Method::GET && path.starts_with("/mcp")));
+
+    if is_expected_probe_404 {
+        tracing::debug!(
+            method = method.as_str(),
+            path,
+            status,
+            elapsed_ms = elapsed,
+            client_ip = ip.as_deref(),
+            ua = ua.as_deref(),
+            "probe request (not found — expected)",
+        );
+    } else {
+        log_http_request(
+            &method,
+            &path,
+            status,
+            elapsed,
+            ip.as_deref(),
+            ua.as_deref(),
+            content_len,
+        );
+    }
+
+    resp
+}
+
+// ── Logging helpers ───────────────────────────────────────────────────────────
+
+fn log_http_request(
+    method: &Method,
+    path: &str,
+    status: u16,
+    elapsed_ms: u128,
+    client_ip: Option<&str>,
+    ua: Option<&str>,
+    content_length: Option<u64>,
+) {
+    tracing::info!(
+        method = method.as_str(),
+        path,
+        status,
+        elapsed_ms,
+        client_ip,
+        ua,
+        content_length,
+        "http request",
+    );
+}
+
+#[allow(clippy::too_many_arguments)]
+fn log_mcp_request(
+    method: &Method,
+    path: &str,
+    status: u16,
+    elapsed_ms: u128,
+    client_ip: Option<&str>,
+    ua: Option<&str>,
+    content_length: Option<u64>,
+    mcp_session: Option<&str>,
+    rpc: &JsonRpcMeta,
+) {
+    tracing::info!(
+        method = method.as_str(),
+        path,
+        status,
+        elapsed_ms,
+        client_ip,
+        ua,
+        content_length,
+        mcp_session,
+        jsonrpc = rpc.rpc_method.as_deref(),
+        tool = rpc.tool_name.as_deref(),
+        jsonrpc_id = rpc.request_id.as_deref(),
+        batch_size = rpc.batch_size,
+        "mcp request",
+    );
+}
+
+// ── JSON-RPC body parsing ─────────────────────────────────────────────────────
+
+#[derive(Debug, Default)]
+struct JsonRpcMeta {
+    request_id: Option<String>,
+    rpc_method: Option<String>,
+    tool_name: Option<String>,
+    batch_size: Option<usize>,
+}
+
+fn parse_jsonrpc_meta(bytes: &Bytes) -> JsonRpcMeta {
+    let Ok(value) = serde_json::from_slice::<serde_json::Value>(bytes) else {
+        return JsonRpcMeta::default();
+    };
+
+    if let Some(arr) = value.as_array() {
+        // Batch request: summarise method(s) from first element only
+        let first = arr.first().map(parse_single).unwrap_or_default();
+        return JsonRpcMeta {
+            batch_size: Some(arr.len()),
+            ..first
+        };
+    }
+
+    parse_single(&value)
+}
+
+fn parse_single(value: &serde_json::Value) -> JsonRpcMeta {
+    let request_id = value.get("id").and_then(json_to_string);
+    let rpc_method = value
+        .get("method")
+        .and_then(|v| v.as_str())
+        .map(|s| s.to_string());
+    let tool_name = value
+        .pointer("/params/name")
+        .and_then(|v| v.as_str())
+        .map(|s| s.to_string());
+
+    JsonRpcMeta {
+        request_id,
+        rpc_method,
+        tool_name,
+        batch_size: None,
+    }
+}
+
+fn json_to_string(value: &serde_json::Value) -> Option<String> {
+    match value {
+        serde_json::Value::Null => None,
+        serde_json::Value::String(s) => Some(s.clone()),
+        serde_json::Value::Number(n) => Some(n.to_string()),
+        serde_json::Value::Bool(b) => Some(b.to_string()),
+        other => Some(other.to_string()),
+    }
+}
+
+// ── Header helpers ────────────────────────────────────────────────────────────
+
+fn header_str(headers: &HeaderMap, name: impl axum::http::header::AsHeaderName) -> Option<String> {
+    headers
+        .get(name)
+        .and_then(|v| v.to_str().ok())
+        .map(|s| s.to_string())
+}
+
+fn client_ip(req: &Request) -> Option<String> {
+    if let Some(first) = req
+        .headers()
+        .get("x-forwarded-for")
+        .and_then(|v| v.to_str().ok())
+        .and_then(|s| s.split(',').next())
+    {
+        let s = first.trim();
+        if !s.is_empty() {
+            return Some(s.to_string());
+        }
+    }
+    req.extensions()
+        .get::<ConnectInfo<SocketAddr>>()
+        .map(|c| c.ip().to_string())
+}

crates/secrets-mcp/src/main.rs

@@ -1,4 +1,5 @@
 mod auth;
+mod logging;
 mod oauth;
 mod tools;
 mod web;
@@ -53,7 +54,8 @@ async fn main() -> Result<()> {
 
     tracing_subscriber::fmt()
         .with_env_filter(
-            EnvFilter::try_from_default_env().unwrap_or_else(|_| "secrets_mcp=info".into()),
+            EnvFilter::try_from_default_env()
+                .unwrap_or_else(|_| "secrets_mcp=info,tower_http=info".into()),
         )
         .init();
 
@@ -120,6 +122,9 @@ async fn main() -> Result<()> {
     let router = Router::new()
         .merge(web::web_router())
         .nest_service("/mcp", mcp_service)
+        .layer(axum::middleware::from_fn(
+            logging::request_logging_middleware,
+        ))
         .layer(axum::middleware::from_fn_with_state(
             pool,
             auth::bearer_auth_middleware,

crates/secrets-mcp/src/tools.rs

@@ -1,4 +1,5 @@
 use std::sync::Arc;
+use std::time::Instant;
 
 use anyhow::Result;
 use rmcp::{
@@ -257,7 +258,17 @@ impl SecretsService {
         Parameters(input): Parameters<SearchInput>,
         ctx: RequestContext<RoleServer>,
     ) -> Result<CallToolResult, rmcp::ErrorData> {
+        let t = Instant::now();
         let user_id = Self::user_id_from_ctx(&ctx)?;
+        tracing::info!(
+            tool = "secrets_search",
+            ?user_id,
+            namespace = input.namespace.as_deref(),
+            kind = input.kind.as_deref(),
+            name = input.name.as_deref(),
+            query = input.query.as_deref(),
+            "tool call start",
+        );
         let tags = input.tags.unwrap_or_default();
         let result = svc_search(
             &self.pool,
@@ -274,7 +285,10 @@ impl SecretsService {
             },
         )
         .await
-        .map_err(|e| rmcp::ErrorData::internal_error(e.to_string(), None))?;
+        .map_err(|e| {
+            tracing::warn!(tool = "secrets_search", ?user_id, error = %e, "tool call failed");
+            rmcp::ErrorData::internal_error(e.to_string(), None)
+        })?;
 
         let summary = input.summary.unwrap_or(false);
         let entries: Vec<serde_json::Value> = result
@@ -312,6 +326,14 @@ impl SecretsService {
             })
             .collect();
 
+        let count = entries.len();
+        tracing::info!(
+            tool = "secrets_search",
+            ?user_id,
+            result_count = count,
+            elapsed_ms = t.elapsed().as_millis(),
+            "tool call ok",
+        );
         let json = serde_json::to_string_pretty(&entries).unwrap_or_else(|_| "[]".to_string());
         Ok(CallToolResult::success(vec![Content::text(json)]))
     }
@@ -326,7 +348,17 @@ impl SecretsService {
         Parameters(input): Parameters<GetSecretInput>,
         ctx: RequestContext<RoleServer>,
     ) -> Result<CallToolResult, rmcp::ErrorData> {
+        let t = Instant::now();
         let (user_id, user_key) = Self::require_user_and_key(&ctx)?;
+        tracing::info!(
+            tool = "secrets_get",
+            ?user_id,
+            namespace = %input.namespace,
+            kind = %input.kind,
+            name = %input.name,
+            field = input.field.as_deref(),
+            "tool call start",
+        );
 
         if let Some(field_name) = &input.field {
             let value = get_secret_field(
@@ -339,8 +371,17 @@ impl SecretsService {
                 Some(user_id),
             )
             .await
-            .map_err(|e| rmcp::ErrorData::internal_error(e.to_string(), None))?;
+            .map_err(|e| {
+                tracing::warn!(tool = "secrets_get", ?user_id, error = %e, "tool call failed");
+                rmcp::ErrorData::internal_error(e.to_string(), None)
+            })?;
 
+            tracing::info!(
+                tool = "secrets_get",
+                ?user_id,
+                elapsed_ms = t.elapsed().as_millis(),
+                "tool call ok",
+            );
             let result = serde_json::json!({ field_name: value });
             let json = serde_json::to_string_pretty(&result).unwrap_or_default();
             Ok(CallToolResult::success(vec![Content::text(json)]))
@@ -354,8 +395,19 @@ impl SecretsService {
                 Some(user_id),
             )
             .await
-            .map_err(|e| rmcp::ErrorData::internal_error(e.to_string(), None))?;
+            .map_err(|e| {
+                tracing::warn!(tool = "secrets_get", ?user_id, error = %e, "tool call failed");
+                rmcp::ErrorData::internal_error(e.to_string(), None)
+            })?;
 
+            let count = secrets.len();
+            tracing::info!(
+                tool = "secrets_get",
+                ?user_id,
+                field_count = count,
+                elapsed_ms = t.elapsed().as_millis(),
+                "tool call ok",
+            );
             let json = serde_json::to_string_pretty(&secrets).unwrap_or_default();
             Ok(CallToolResult::success(vec![Content::text(json)]))
         }
@@ -371,7 +423,16 @@ impl SecretsService {
         Parameters(input): Parameters<AddInput>,
         ctx: RequestContext<RoleServer>,
     ) -> Result<CallToolResult, rmcp::ErrorData> {
+        let t = Instant::now();
         let (user_id, user_key) = Self::require_user_and_key(&ctx)?;
+        tracing::info!(
+            tool = "secrets_add",
+            ?user_id,
+            namespace = %input.namespace,
+            kind = %input.kind,
+            name = %input.name,
+            "tool call start",
+        );
 
         let tags = input.tags.unwrap_or_default();
         let meta = input.meta.unwrap_or_default();
@@ -391,8 +452,20 @@ impl SecretsService {
             &user_key,
         )
         .await
-        .map_err(|e| rmcp::ErrorData::internal_error(e.to_string(), None))?;
+        .map_err(|e| {
+            tracing::warn!(tool = "secrets_add", ?user_id, error = %e, "tool call failed");
+            rmcp::ErrorData::internal_error(e.to_string(), None)
+        })?;
 
+        tracing::info!(
+            tool = "secrets_add",
+            ?user_id,
+            namespace = %input.namespace,
+            kind = %input.kind,
+            name = %input.name,
+            elapsed_ms = t.elapsed().as_millis(),
+            "tool call ok",
+        );
         let json = serde_json::to_string_pretty(&result).unwrap_or_default();
         Ok(CallToolResult::success(vec![Content::text(json)]))
     }
@@ -406,7 +479,16 @@ impl SecretsService {
         Parameters(input): Parameters<UpdateInput>,
         ctx: RequestContext<RoleServer>,
     ) -> Result<CallToolResult, rmcp::ErrorData> {
+        let t = Instant::now();
         let (user_id, user_key) = Self::require_user_and_key(&ctx)?;
+        tracing::info!(
+            tool = "secrets_update",
+            ?user_id,
+            namespace = %input.namespace,
+            kind = %input.kind,
+            name = %input.name,
+            "tool call start",
+        );
 
         let add_tags = input.add_tags.unwrap_or_default();
         let remove_tags = input.remove_tags.unwrap_or_default();
@@ -432,8 +514,20 @@ impl SecretsService {
             &user_key,
         )
         .await
-        .map_err(|e| rmcp::ErrorData::internal_error(e.to_string(), None))?;
+        .map_err(|e| {
+            tracing::warn!(tool = "secrets_update", ?user_id, error = %e, "tool call failed");
+            rmcp::ErrorData::internal_error(e.to_string(), None)
+        })?;
 
+        tracing::info!(
+            tool = "secrets_update",
+            ?user_id,
+            namespace = %input.namespace,
+            kind = %input.kind,
+            name = %input.name,
+            elapsed_ms = t.elapsed().as_millis(),
+            "tool call ok",
+        );
         let json = serde_json::to_string_pretty(&result).unwrap_or_default();
         Ok(CallToolResult::success(vec![Content::text(json)]))
     }
@@ -447,7 +541,17 @@ impl SecretsService {
         Parameters(input): Parameters<DeleteInput>,
         ctx: RequestContext<RoleServer>,
     ) -> Result<CallToolResult, rmcp::ErrorData> {
+        let t = Instant::now();
         let user_id = Self::user_id_from_ctx(&ctx)?;
+        tracing::info!(
+            tool = "secrets_delete",
+            ?user_id,
+            namespace = %input.namespace,
+            kind = input.kind.as_deref(),
+            name = input.name.as_deref(),
+            dry_run = input.dry_run.unwrap_or(false),
+            "tool call start",
+        );
 
         let result = svc_delete(
             &self.pool,
@@ -460,8 +564,18 @@ impl SecretsService {
             },
         )
         .await
-        .map_err(|e| rmcp::ErrorData::internal_error(e.to_string(), None))?;
+        .map_err(|e| {
+            tracing::warn!(tool = "secrets_delete", ?user_id, error = %e, "tool call failed");
+            rmcp::ErrorData::internal_error(e.to_string(), None)
+        })?;
 
+        tracing::info!(
+            tool = "secrets_delete",
+            ?user_id,
+            namespace = %input.namespace,
+            elapsed_ms = t.elapsed().as_millis(),
+            "tool call ok",
+        );
         let json = serde_json::to_string_pretty(&result).unwrap_or_default();
         Ok(CallToolResult::success(vec![Content::text(json)]))
     }
@@ -473,19 +587,39 @@ impl SecretsService {
     async fn secrets_history(
         &self,
         Parameters(input): Parameters<HistoryInput>,
-        _ctx: RequestContext<RoleServer>,
+        ctx: RequestContext<RoleServer>,
     ) -> Result<CallToolResult, rmcp::ErrorData> {
+        let t = Instant::now();
+        let user_id = Self::user_id_from_ctx(&ctx)?;
+        tracing::info!(
+            tool = "secrets_history",
+            ?user_id,
+            namespace = %input.namespace,
+            kind = %input.kind,
+            name = %input.name,
+            "tool call start",
+        );
+
         let result = svc_history(
             &self.pool,
             &input.namespace,
             &input.kind,
             &input.name,
             input.limit.unwrap_or(20),
-            None,
+            user_id,
         )
         .await
-        .map_err(|e| rmcp::ErrorData::internal_error(e.to_string(), None))?;
+        .map_err(|e| {
+            tracing::warn!(tool = "secrets_history", ?user_id, error = %e, "tool call failed");
+            rmcp::ErrorData::internal_error(e.to_string(), None)
+        })?;
 
+        tracing::info!(
+            tool = "secrets_history",
+            ?user_id,
+            elapsed_ms = t.elapsed().as_millis(),
+            "tool call ok",
+        );
         let json = serde_json::to_string_pretty(&result).unwrap_or_default();
         Ok(CallToolResult::success(vec![Content::text(json)]))
     }
@@ -499,7 +633,17 @@ impl SecretsService {
         Parameters(input): Parameters<RollbackInput>,
         ctx: RequestContext<RoleServer>,
     ) -> Result<CallToolResult, rmcp::ErrorData> {
+        let t = Instant::now();
         let (user_id, user_key) = Self::require_user_and_key(&ctx)?;
+        tracing::info!(
+            tool = "secrets_rollback",
+            ?user_id,
+            namespace = %input.namespace,
+            kind = %input.kind,
+            name = %input.name,
+            to_version = input.to_version,
+            "tool call start",
+        );
 
         let result = svc_rollback(
             &self.pool,
@@ -511,8 +655,17 @@ impl SecretsService {
             Some(user_id),
         )
         .await
-        .map_err(|e| rmcp::ErrorData::internal_error(e.to_string(), None))?;
+        .map_err(|e| {
+            tracing::warn!(tool = "secrets_rollback", ?user_id, error = %e, "tool call failed");
+            rmcp::ErrorData::internal_error(e.to_string(), None)
+        })?;
 
+        tracing::info!(
+            tool = "secrets_rollback",
+            ?user_id,
+            elapsed_ms = t.elapsed().as_millis(),
+            "tool call ok",
+        );
         let json = serde_json::to_string_pretty(&result).unwrap_or_default();
         Ok(CallToolResult::success(vec![Content::text(json)]))
     }
@@ -526,9 +679,18 @@ impl SecretsService {
         Parameters(input): Parameters<ExportInput>,
         ctx: RequestContext<RoleServer>,
     ) -> Result<CallToolResult, rmcp::ErrorData> {
+        let t = Instant::now();
         let (user_id, user_key) = Self::require_user_and_key(&ctx)?;
         let tags = input.tags.unwrap_or_default();
         let format = input.format.as_deref().unwrap_or("json");
+        tracing::info!(
+            tool = "secrets_export",
+            ?user_id,
+            namespace = input.namespace.as_deref(),
+            kind = input.kind.as_deref(),
+            format,
+            "tool call start",
+        );
 
         let data = svc_export(
             &self.pool,
@@ -544,13 +706,23 @@ impl SecretsService {
             Some(&user_key),
         )
         .await
-        .map_err(|e| rmcp::ErrorData::internal_error(e.to_string(), None))?;
+        .map_err(|e| {
+            tracing::warn!(tool = "secrets_export", ?user_id, error = %e, "tool call failed");
+            rmcp::ErrorData::internal_error(e.to_string(), None)
+        })?;
 
         let serialized = format
             .parse::<secrets_core::models::ExportFormat>()
             .and_then(|fmt| fmt.serialize(&data))
             .map_err(|e| rmcp::ErrorData::internal_error(e.to_string(), None))?;
 
+        tracing::info!(
+            tool = "secrets_export",
+            ?user_id,
+            entry_count = data.entries.len(),
+            elapsed_ms = t.elapsed().as_millis(),
+            "tool call ok",
+        );
         Ok(CallToolResult::success(vec![Content::text(serialized)]))
     }
 
@@ -564,9 +736,18 @@ impl SecretsService {
         Parameters(input): Parameters<EnvMapInput>,
         ctx: RequestContext<RoleServer>,
     ) -> Result<CallToolResult, rmcp::ErrorData> {
+        let t = Instant::now();
         let (user_id, user_key) = Self::require_user_and_key(&ctx)?;
         let tags = input.tags.unwrap_or_default();
         let only_fields = input.only_fields.unwrap_or_default();
+        tracing::info!(
+            tool = "secrets_env_map",
+            ?user_id,
+            namespace = input.namespace.as_deref(),
+            kind = input.kind.as_deref(),
+            prefix = input.prefix.as_deref().unwrap_or(""),
+            "tool call start",
+        );
 
         let env_map = secrets_core::service::env_map::build_env_map(
             &self.pool,
@@ -580,8 +761,19 @@ impl SecretsService {
             Some(user_id),
         )
         .await
-        .map_err(|e| rmcp::ErrorData::internal_error(e.to_string(), None))?;
+        .map_err(|e| {
+            tracing::warn!(tool = "secrets_env_map", ?user_id, error = %e, "tool call failed");
+            rmcp::ErrorData::internal_error(e.to_string(), None)
+        })?;
 
+        let entry_count = env_map.len();
+        tracing::info!(
+            tool = "secrets_env_map",
+            ?user_id,
+            entry_count,
+            elapsed_ms = t.elapsed().as_millis(),
+            "tool call ok",
+        );
         let json = serde_json::to_string_pretty(&env_map).unwrap_or_default();
         Ok(CallToolResult::success(vec![Content::text(json)]))
     }

crates/secrets-mcp/src/web.rs

@@ -1,4 +1,5 @@
 use askama::Template;
+use chrono::SecondsFormat;
 use std::net::SocketAddr;
 
 use axum::{
@@ -61,7 +62,8 @@ struct AuditPageTemplate {
 }
 
 struct AuditEntryView {
-    created_at: String,
+    /// RFC3339 UTC for `<time datetime>`; rendered as browser-local in audit.html.
+    created_at_iso: String,
     action: String,
     target: String,
     detail: String,
@@ -115,6 +117,10 @@ pub fn web_router() -> Router<AppState> {
             "/favicon.ico",
             get(|| async { Redirect::permanent("/favicon.svg") }),
         )
+        .route(
+            "/.well-known/oauth-protected-resource",
+            get(oauth_protected_resource_metadata),
+        )
         .route("/", get(login_page))
         .route("/auth/google", get(auth_google))
         .route("/auth/google/callback", get(auth_google_callback))
@@ -319,11 +325,6 @@ where
             StatusCode::INTERNAL_SERVER_ERROR
         })?;
 
-    // Ensure the user has an API key (auto-creates on first login).
-    if let Err(e) = ensure_api_key(&state.pool, user.id).await {
-        tracing::warn!(error = %e, "failed to ensure api key for user");
-    }
-
     session
         .insert(SESSION_USER_ID, user.id.to_string())
         .await
@@ -408,7 +409,7 @@ async fn audit_page(
     let entries = rows
         .into_iter()
         .map(|row| AuditEntryView {
-            created_at: row.created_at.format("%Y-%m-%d %H:%M:%S UTC").to_string(),
+            created_at_iso: row.created_at.to_rfc3339_opts(SecondsFormat::Secs, true),
             action: row.action,
             target: format_audit_target(&row.namespace, &row.kind, &row.name),
             detail: serde_json::to_string_pretty(&row.detail).unwrap_or_else(|_| "{}".to_string()),
@@ -629,6 +630,28 @@ async fn api_apikey_regenerate(
     Ok(Json(ApiKeyResponse { api_key }))
 }
 
+// ── OAuth / Well-known ────────────────────────────────────────────────────────
+
+/// RFC 9728 — OAuth 2.0 Protected Resource Metadata.
+///
+/// Advertises that this server accepts Bearer tokens in the `Authorization`
+/// header.  We deliberately omit `authorization_servers` because this service
+/// issues its own API keys (no external OAuth AS is involved).  MCP clients
+/// that probe this endpoint will see the resource identifier and stop looking
+/// for a delegated OAuth flow.
+async fn oauth_protected_resource_metadata(State(state): State<AppState>) -> impl IntoResponse {
+    let body = serde_json::json!({
+        "resource": state.base_url,
+        "bearer_methods_supported": ["header"],
+        "resource_documentation": format!("{}/dashboard", state.base_url),
+    });
+    (
+        StatusCode::OK,
+        [(header::CONTENT_TYPE, "application/json")],
+        axum::Json(body),
+    )
+}
+
 // ── Helper ────────────────────────────────────────────────────────────────────
 
 fn render_template<T: Template>(tmpl: T) -> Result<Response, StatusCode> {
@@ -640,6 +663,7 @@ fn render_template<T: Template>(tmpl: T) -> Result<Response, StatusCode> {
 }
 
 fn format_audit_target(namespace: &str, kind: &str, name: &str) -> String {
+    // Auth events reuse kind/name as a provider-scoped target, not an entry identity.
     if namespace == "auth" {
         format!("{}/{}", kind, name)
     } else {

crates/secrets-mcp/templates/audit.html

@@ -108,7 +108,7 @@
 <main class="main">
     <section class="card">
         <div class="card-title">我的审计</div>
-        <div class="card-subtitle">展示最近 100 条与当前用户相关的新审计记录。</div>
+        <div class="card-subtitle">展示最近 100 条与当前用户相关的新审计记录。时间为浏览器本地时区。</div>
 
         {% if entries.is_empty() %}
         <div class="empty">暂无审计记录。</div>
@@ -125,7 +125,7 @@
             <tbody>
                 {% for entry in entries %}
                 <tr>
-                    <td class="col-time mono">{{ entry.created_at }}</td>
+                    <td class="col-time mono"><time class="audit-local-time" datetime="{{ entry.created_at_iso }}">{{ entry.created_at_iso }}</time></td>
                     <td class="col-action mono">{{ entry.action }}</td>
                     <td class="col-target mono">{{ entry.target }}</td>
                     <td class="col-detail"><pre class="detail">{{ entry.detail }}</pre></td>
@@ -138,5 +138,17 @@
 </main>
 </div>
 </div>
+<script>
+(function () {
+  document.querySelectorAll('time.audit-local-time[datetime]').forEach(function (el) {
+    var raw = el.getAttribute('datetime');
+    var d = raw ? new Date(raw) : null;
+    if (d && !isNaN(d.getTime())) {
+      el.textContent = d.toLocaleString(undefined, { dateStyle: 'medium', timeStyle: 'medium' });
+      el.title = raw + ' (UTC)';
+    }
+  });
+})();
+</script>
 </body>
 </html>